LAYING DOWN THE BEADS
It takes a lot of practice to lay down the perfect bead of caulk and a bit of knowledge to choose the correct caulk for the occasion. No single product works in every situation, so let’s look at a few options to consider.
Although a multitude of tubes exists, caulk is usually marked with job-specific labels on the cartridges. Nevertheless, the chemistry of the caulk can determine its characteristics including whether it can be painted and how durable it is.
There are primarily four types of caulk: rubber caulk (good for adhesion and water resistance but highly flammable and sticky), latex caulk (easiest to use for the broadest range of applications though not as durable), silicone caulk (most flexible in all temperatures and adhesive to the widest range of materials while remaining waterproof), and polyurethane sealants (most expensive yet super durable with highly adhesive, waterproof, and flexible coverage).
Existing caulk must be removed before you can apply new caulk. In order to accomplish this prep, you’ll need a sharp utility knife or chisel, a brush or vacuum for loose debris, and rubbing alcohol to remove soap scum on tubs. You also need to purchase your caulk and caulk guns. Most pros prefer a solid-shaft gun that creates more pressure on the piston, resulting in a smoother bead. If your job is easier and smaller, a squeeze tube or pressurized can of caulk may be all you need.
Check the caulk label for temperature recommendations. Cut the tip of the tube, either at an angle or straight, to allow a slightly smaller opening than the bead you will apply.
Place masking tape on both sides of the joints before caulking; once you have caulked, you can remove the tape for a clean finish. When you apply the caulk, keep the tip moving and maintain steady pressure for a nice, smooth bead. Break long sections down into shorter sections. Be cautious about overlapping different types of caulk.
For smooth tooling results, use your finger, a piece of ice, or a plastic spoon depending on the caulk used.
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